Fluid-pressure and analogous brake systems – Multiple fluid-receiving devices – Multiple motors
Patent
1978-11-17
1980-07-15
Reger, Duane A.
Fluid-pressure and analogous brake systems
Multiple fluid-receiving devices
Multiple motors
303 84R, B60T 826
Patent
active
042124980
ABSTRACT:
A dual type hydraulic circuit for a vehicle brake which comprises a control valve for controlling the hydraulic pressure in the rear wheel cylinders such that the distribution of braking pressure to the front and rear wheels may be appropriate in either cases, when both circuits are in normal function or when one circuit is faulty. The control valve includes a proportioning valve with a valve piston for opening and closing a fluid passage to the rear wheel cylinder, and a differential piston for controlling the operation of the valve piston in accordance with the hydraulic pressure in the both hydraulic circuits acting on its two pressure-receiving faces dissimilar in the respective area. The differential piston is provided with a small diameter portion and a large diameter portion, being constantly biased in an direction away from the control valve piston, in order to keep a distance larger than the space necessitated for the valve piston stroke to do a controlling operation, while being in confrontation at its small diameter portion to the valve piston. The large diameter portion of the differential piston receives the pressure, on its smaller pressure-receiving face on the nearer side to the smaller diameter portion, in the hydraulic circuit which is not controlled by the control valve, and the other pressure, on the larger pressure-receiving face thereof, in the hydraulic circuit controlled by the control valve.
REFERENCES:
patent: 3586384 (1971-06-01), Falk
patent: 3804468 (1974-04-01), Ishikawa et al.
patent: 3969000 (1976-07-01), Ohta et al.
Reger Duane A.
Toyota Jidosha Kogyo Kabushiki Kaisha
LandOfFree
Dual type hydraulic circuit for a vehicle brake does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Dual type hydraulic circuit for a vehicle brake, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual type hydraulic circuit for a vehicle brake will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-461099